Which one of the following substances is/are amphoteric? (2) HS-1 (3) PO43- 1-*OSH (1) 2 only 3 only 1 and 2 2 and 3

Q: A 10.0 mL dose of the antacid contains 830 mg of magnesium hydroxide. What volume of 0.10 M stomach…

A: Given  Volume = 10 mL  mass of Mg(OH)2 = 830 mg  1 mg = 10-3 gram  830 mg = 0.830 gram  Molarity of…

Q: Calculate the percent dissociation for a 0.22-M solution of chlorous acid (HClO2, Ka = 1.2 ×10−2).

A: Given Concentration of HClO2 = 0.22 M Ka of HClO2 = 1.2×10-2

Q: Carbonic acid, H2CO3 is a diprotic acid with Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10¯11. What is the pH…

A: The Ka1 is greater than Ka2 by a fraction of 10-4.  In a diprotic acid, firstly the first hydrogen…

Q: 13. What is the pH of blood with [H+] = 4.8 x 10-8 M? %3D

A:

Q: Hypochlorous acid, HClO, has a pKa of 7.54. What are [H3O+], pH, [ClO-], and [HClO] in 0.133 M HClO?

A: Please go through the below pic for the reaction taking place and Ka expression.

Q: Activity 6. Working with pH, pOH, [H30°), and (OH] A solution has a pH of 3.45. You may answer the…

A: pH = - log [H3O+] [H3O+]  =10-pH      pOH =- log [OH-] [OH-]  = 10-pOH      pH + pOH = 14   If the…

Q: A 1.2· 102 M aqueous solution of Ca(OH)2 at 25.0 °C has a pH of 1.62 O 4.2- 10-13 12.38 O 12.08 O…

A:

Q: 10. A solution containing 1.75 M citric acid (H3C6H5O7) is prepared. Enough hydroiodic acid (HI;…

A: Given that : Molarity of citric acid = 1.75 M The final concentration of HI = 0.25 M The acid…

Q: 28. What is the pH of a 0.62 M NH,NO, solution at 25°C? [Kb for NH; is 1.76 × 10°] А. 2.48 В. 4.73…

A: Welcome to bartleby !  We have to calculate pH

Q: What is [H3O+] of a softdrink that has a pH of 3.400?

A: Given: pH of softdrink = 3.400

Q: A 0.144 M solution of HA has a pH of 2.26 at 25°C. What is the value of Ka for HA? (the answer…

A: Given that, a 0.144 M solution of HA has a pH of 2.26 at 25°C. I.e. concentration is C = 0.144 M.…

Q: 6. An intrinsic factor of food deterioration that refers to the measure of free acidity in food. _7.…

A: This question is related to Food deterioration. It is defined as a process that makes a product…

Q: How many grams of calcium hydroxide are needed to neutralize 25.0 mL of 0.100M HNO3?

A: Given,25.0 mL of 0.100 M HNO3

Q: Q5/ What volume of 0.20M Ca(OH)2 will neutralize 45.0 mL of a 1M solution of HCIO;?

A: Given: 0.20 M Ca(OH)2 45.0 mL of 1M HClO3

Q: A 0.050 M concentration of weak base, CH​3CH​2NH​2, was found to ionize at 1.7%. What is the…

A: Ethylamine (CH3CH2NH2) is a weak base. When diluted with water, it partially ionizes producing…

Q: The hydronium ion concentration of an aqueous solution of 0.591 M hypochlorous acid (K, = 3.50×10-8)…

A: [HClO] ( concentration of hypochlorous acid ) = 0.591 M  Acid equilibrium constant Ka = 3.50 * 10-8…

Q: A

A: We wil calculate value of kb

Q: Use the unbalanced neutralization below and the periodic table to calculate the answer. H,PO, (aq) +…

A: 1. Given ;-  H3PO4(aq) +Mg(OH)2(aq) → Mg3(PO4)2(s) + H2O(l)  Amount of H3PO4 = 7.49 g  To calculate…

Q: 5.796

A: Kb = 10-pKb  Kb = 10-5.796 Kb = 1.6 • 10^-6

Q: The difference in the concentration of hydronium ions in a solution of pH 2.0 compared with one of…

A: We know that : pH = -log[H3O^+]  [H3O^+] = concentration of hydronium ion.  For pH = 2 :  2 =…

Q: You have 50.0 mL 0.10 M NazPO4 to which you add 50.0 mL 0.19 M NaH PO4. What is the pH of this…

A: We can calculate the pH of the solution using the formula, Calculate the total volume of the…

Q: An aqueous solution of sodium ethanoate is alkaline having a pH value greater than 7 46. Sodium…

A: 46.  First statement is sodium ethanoate is alkaline having pH greater than 7.  Sodium ethanoate +…

Q: Which correctly shows the ionization of H2CrO4 in water?

A: The acid given is H2CrO4.

Q: If the pH of a 7.0×10−4M solution of morphine is 9.5, what is the value of Kb? What is the value of…

A:

Q: What is the concentration of a solution of Ca1OH22 for which the pH is 11.68?

A: Ca ( OH)2 ------> Ca + 2 OH - pOH = 14 - 11.68 = 2.32 pOH = - log [ OH-] 2.32 = - log [OH-] [OH-]…

Q: The Ka value for hypochlorous acid (HClO) is 3x10-8 at 25 ºC. What is the ionization percentage of…

A: The concentration of hydrogen ions released by HClO at equilibrium can e determined as follows: H+ =…

Q: Write the equations that represent the first and third ionization steps for arsenic acid (H3ASO4) in…

A: Arsenic acid (H3AsO4) is a Bronsted acid, i.e. it gives H+ ions in the aqueous solution. It is a…

Q: a 1L, 0.1M, pH = 7.4 buffer solution. The weak acid is 0.5M, pKa = 8.6. The conjugate base is 0.1M.…

A:

Q: Write the chemical equation for the ionic reaction between Na2S and AgNO3 .

A: Molecular equation A molecular equation is a balanced chemical equation that shows the complete…

Q: 6. What is the pH of a solution containing 0.550 M HOAc and 0.460 M LiOAc? (ka of HOAc = 1.80 x…

A: The Henderson-Hasselbalch equation shows how the concentrations of an acid and its conjugate base…

Q: Which of the following substances is not amphiprotic? Choose all that apply. a) HSO4 b) HPO 2- c)…

A: Given substances are :  a). HSO4-  b). HPO42- c). AsO43- d). H3PO4  e). HSO3-  f). HCO3-  Which of…

Q: Nitrous acid HNO2 has K = 4.6 x 10ª. Which of the following statements are true. You can choose any…

A: Nitrous acid is weak monoprotic acid that is used to make diazonium salts from amine. Nitrous acid…

Q: Solubility of gases in water increases with increasing mass. Explain?

A: Since you have posted multiple questions, we will answer only first question for you. If you want…

Q: Saccharin, a sugar substitute, is a weak acid with pKa = 2.32 at 25°C. The % ionization in a 0.10 M…

A:

Q: Write the net ionic equation for the hydrolysis reaction that occurs when sodium acetate, NaCH3CO2,…

A:

Q: 22. Which of the following is not true for a solution at 25°C that has a hydroxide concentration of…

A: Given, [OH-] = 2.5 x 10-6 M PH is defined as negative logarithm of concentration of [H+] ions.  Kw =…

Q: How many grams of H2SO4 could be neutralized by 16.2 mL of 0.370 M KOH?

A: Given that : The volume of KOH = 16.2 mL The molarity of KOH = 0.370 M We have to calculate the mass…

Q: What is the expected pH of a solution when you dissolve 20 mmoles of Na₂HPO4 in 100 mL of MilliQ…

A:

Q: Which kind of intermolecular attractive force is shownin each case here?

A: Part (a): (i) in first case the inter molecular force is Dipole-Dipole force. This is because in HF…

Q: What mass of Ca(OH) is required to neutralize 50.00 mL of 0.180 M HCI?

A: Given information:Volume of HCl = 50.00 mLConcentration of HCl = 0.180 M

Q: The pK, of a particular weak acid is 5.17. What is the pH of the weak acid solution when exactly…

A:

Q: Calculate the degree of ionization of morphine, pKa 8.0, in a solution with a pH of 2.2. Predict how…

A: The pH indicates the acidity or basicity of the solution. It is the negative logarithm of the…

Q: If 0-2 pH is considered strongly acidic, 2-7 is weakly acidic, 7.0 is neutral, 7-12 is weakly basic…

A: 1. pH range 2 to 7 is considered as weakly acidic. Therefore seltzer water with a pH of 3.5 is a…

Q: What I Can Do Activity 3.7: Answer what is being asked. 1. As acid strength increases, indicate if…

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Q: How many mols of HBr are used to neutralize 18.66 mL of a 0.2299 M Ca(OH)₂ solution?

A:

Q: Calculate the degree of ionization of morphine, pKa 8.0, in a solution with a pH of 2.2. Predict how…

A: The question is placed on the concept of equilibrium. we have to identify degree of dissociation of…

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.